| 1. |
If Disaster Strikes—Are You Prepared? |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 1-6
Preview
|
PDF (898KB)
|
|
摘要:
This article describes the procedures undertaken by the Algona Municipal Utilities in Iowa after a tornado hit the city in June 1979. The electric and water departments were combined and together they coordinated and evaluated plans for restoring electrical service to well pumps and the water filtration plant. Crews were constantly evaluating the situation and progressing with clean‐up operations.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00592.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
| 2. |
Safe Handling of Chemicals: Alum |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 3-7
Preview
|
PDF (1503KB)
|
|
摘要:
Aluminum sulfate can cause irritation of eyes, skin and mucous membranes if workers are not adequately protected. The handling and storage of the chemical is described along with first aid for irritations or burns.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00593.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
| 3. |
Destratification and Thermal Inversion (Reservoir Turnover) |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 4-8
Charles R. Beer,
Preview
|
PDF (834KB)
|
|
摘要:
Bodies of water such as reservoirs and lakes stratify into upper layers called circulation zones, middle layers called thermoclines, and lower layers called stagnation zones. Turnover of these layers can cause unpleasant taste and odor in the water during the spring and the fall. To avoid the sudden water quality changes that occur with turnover, a water body may be destratified artificially by adding air or oxygen to the stagnation zone, or by pumping water from the stagnation zone to the circulation zone to keep the layers mixed and destroy the thermocline.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00594.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
| 4. |
Certification Corner |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 5-7
Preview
|
PDF (763KB)
|
|
摘要:
Topics in this month's “Certification Corner” include well backwashing, globe valves, chlorine, reservoir turnover, and protective clothing for safe handling of chemicals.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00595.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
| 5. |
Safety First on Ladders |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 6-6
Preview
|
PDF (91KB)
|
|
摘要:
Safety procedures for the use of ladders are described.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00596.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
| 6. |
Gimmicks and Gadgets |
| |
Opflow,
Volume 5,
Issue 9,
1979,
Page 7-7
Preview
|
PDF (697KB)
|
|
摘要:
Featured in this month's “Gimmick and Gadgets” is a device for use on polyethylene service pipe in order to squeeze off the flow of water if a repair job is necessary.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1979.tb00597.x
出版商:Wiley
年代:1979
数据来源: WILEY
|
首页
